Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D640365 | Burner controller | Don C. Kennedy, Jonathan McDonald, Peter E. Stolt | 2011-06-21 |
| 7800508 | Dynamic DC biasing and leakage compensation | Brent Chian, John T. Adams, Timothy J. Nordberg, Bruce L. Hill | 2010-09-21 |
| 7764182 | Flame sensing system | Brent Chian, Timothy J. Nordberg, Bruce L. Hill | 2010-07-27 |
| 7604478 | Vapor resistant fuel burning appliance | Robert M. Ruhland | 2009-10-20 |
| 7538297 | Appliance control with ground reference compensation | Rolf L. Strand | 2009-05-26 |
| 7056013 | Sensor arrangement having an air inflow pattern for preventing direct debris impact | Roger R. Sanger, Timothy Lippold, Paul Cairns | 2006-06-06 |
| 6973819 | Differential compensated vapor sensor | Robert M. Ruhland, Richard Gehman, Peter M. Calvagna | 2005-12-13 |